@article{DE_1993_29_8_a15,
     author = {S. E. Pastukhova},
     title = {The well-posedness of a mixed problem with an oblique derivative for the wave operator},
     journal = {Differencialʹnye uravneni\^a},
     pages = {1415--1424},
     publisher = {mathdoc},
     volume = {29},
     number = {8},
     year = {1993},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DE_1993_29_8_a15/}
}